InsiderSource
TMC

TMC the metals Co Inc.

SEC CIK 1798562
$5.43 −16.8% · 90 days
90-day buys
$0
0 open-market
90-day sells
$1.71M
4 open-market
Net insider flow
−$1.71M
Net selling
Filings shown
54
Most recent
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At a glance

Over the last 90 days, insiders at TMC have sold a net $1.71M of stock (0 open-market buys vs 4 sells).

Largest recent trade: Ilves Erika sold $9.18M of TMC, trimming their stake 58%.

Most active filer: O'sullivan Anthony, with 23 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for TMC, newest first
View on SEC EDGAR ↗
TMC
TMC the metals Co Inc.
Sell May Brendan · Director · Open-market sale · filed 1w ago ΔOwn −9.7%

May Brendan sold $133.3K of TMC, trimming their stake 10%.

−$133.3K
20,768 sh @ $6
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TMC
TMC the metals Co Inc.
Sell Shesky Craig · Chief Financial Officer · Open-market sale · filed Mar 26, 2026 ΔOwn −13%

Shesky Craig sold $976.8K of TMC, trimming their stake 13%.

−$976.8K
215,492 sh @ $5
TMC
TMC the metals Co Inc.
Sell Shesky Craig · Chief Financial Officer · Open-market sale · filed Mar 26, 2026 ΔOwn −4.5%

Shesky Craig sold $358.2K of TMC, trimming their stake 5%.

−$358.2K
78,186 sh @ $5
TMC
TMC the metals Co Inc.
Sell Shesky Craig · Chief Financial Officer · Open-market sale · filed Mar 26, 2026 ΔOwn −2.9%

Shesky Craig sold $246.1K of TMC, trimming their stake 3%.

−$246.1K
51,941 sh @ $5
TMC
TMC the metals Co Inc.
Sell O'Sullivan Anthony · Chief Development Officer · Open-market sale · filed Dec 2, 2025 ΔOwn −2.4%

O'sullivan Anthony sold $338.5K of TMC, trimming their stake 2%.

−$338.5K
50,000 sh @ $7
TMC
TMC the metals Co Inc.
Sell O'Sullivan Anthony · Chief Development Officer · Open-market sale · filed Dec 2, 2025 ΔOwn −2.4%

O'sullivan Anthony sold $325.5K of TMC, trimming their stake 2%.

−$325.5K
50,000 sh @ $7
TMC
TMC the metals Co Inc.
Sell ILVES Erika · Chief Strategy Officer · Open-market sale · filed Sep 24, 2025 ΔOwn −58%

Ilves Erika sold $9.18M of TMC, trimming their stake 58%.

−$9.18M
1.59M sh @ $6
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About TMC insider activity

This page tracks every recent Form 4 filed for TMC the metals Co Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is TMC insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for TMC the metals Co Inc. usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.